Orion-Opus with Sirius Comfort

Orion-Opus with Sirius Comfort is a diffusor unit with VAV functionality and a heating function. It is used as a volume regulator and diffusor unit in demand controlled ventilation systems. Sirius Comfort has

unique characteristics and Orion-Opus has a large capacity, good induction and is well-suited to large airflows.

DESIGN

Sirius Comfort is built as a complete measurement and regulating unit for demand control of airflows in the ventilation system. The measurement station measures pressure difference via measurement rods

integrated into the unit. Sirius MI (motor inside) is supplied with a linear regulator from Belimo. Access to the engine is via the valve front.

Sirius MU (external motor) is supplied with a rotating motor from Belimo and Siemens. Access to the motor is via the ceiling plate next to the valve. If there is a fixed ceiling, an inspection hatch must be

made. When choosing Sirius MU, other regulator variants can be delivered on request.

Orion-Opus has a detachable front plate with nozzles of ABS plastic, and can be delivered adapted for different types of ceiling systems. Pipe connection waterside is delivered as standard with 1/2” internal

threads.

The valve Orion Opus can be mounted in different types of false ceilings or in a permanent ceiling. On Sirius Comfort a suspension bracket in the back edge is used with a threaded rod or belt, see figure 4.

For connecting up of the two components, the suspension bracket is used as shown in figure 7. This is placed against the side of the plenum box and fastened with a mounting screw.